Locking mechanism of hammerless shotguns and rifles



Feb; 8, 1 927.

' J. LARSEN LOG KING MECHANISM OF HAMMBRLESS sHp'rquNs AND RIFLES 2 Sheets- Sheet 1 Fil'ed Aug. 4. 1 923- e MW 7/ n 6 a .e w L v 4 B Feb. 8, 1927..

J. LARS EN LOCKING MECHANISM OF HAMMERLESS SHOTGUNS AND RIFLES Fild Aug. 4. 192:5

2 Sheets-Sheet 2 Patented Feb. 8, 1927.

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JOHAN LARSEN, OF EIDSVOLD, NORWAY.

LOCKING MECHANISM OF HAMMER LESS SHOTGUNS AND RIFLES.

Application filed August 4, 1923, Serial No. 655,7l8, and in Norway August 22, 1922.

My invention relates to locking means for double barrelled hammerless shot guns and rifles of the kind in which the locking opera tion is brought about through the intermediary of a sliding member actuated by the turning of the top lever.

The object of my invention is to provide a locking or safety device of this kind simultaneously, locking the hammer levers and the triggers through the opening movement of the top lever, the arrangement being also such as enable the locking of one barrel at will after the other barrel has been fired.

The invention is illustrated in the accompanying drawing, in which Figs. 1 and 2 are sectional views of the locking mechanism in its diiferent positions. These views are somewhat diagrammatical, all parts of the firing mechanism not directly connected with the locking mechanism being left out. Fig. 3 illustrates a detail in the loclnng of the trigger levers, seen from below.

The locking mechanism in question is arranged in such manner, that it may be mounted in hammerless guns of any type.

The top lever l which is arranged and acting in the usual manner is provided with a breast or cam face 2. On the top lever being swung aside for the opening of the gun, this cam face 2 comes into contact with a slide 3 immediately before the gun opens. In the drawings this slide is shown in form of a sliding pin movable in a boring in the woodwork at of the gun stock. The pressure of the cam face 2 carries this sliding pin 3 backwards to the position shown in Fig. 3, the rear end 5 of the sliding pin 3 being hereby pressed against a lever 6 pivoted on a bolt 7 in a bail 8 fastened to the upper part of the housing. The upper end of the lever 6 is connected to a link 9, which is turnably attached to a slide 10 moving in a slot 11 in the upper wall of the housing. The upper face of this slide which is lying on the outside of the housing is formed as a sliding knob 12, said knob being rifled in the usual way on its upperface and placed so as to be easily actuated by aid of the thumb of the right hand.

In this position which the lever system 6, 9 has after having been pressed back by the sliding pin 3 (see Fig. 2), the lever 6 with a notch 13 straddles the bolts 16, 17 of the hammer levers 14, 15. Hereby both triggers 18, 19 are securely locked and can not be pulled, the bolts 16, 17 not being able to leave the notch 13, even when the gun is exposed to a violent shock as for instance by a fall, their pressure against this notch being directed straight against the pivot 7 of the lever 6. Simultaneously the lower flattened end of the lever 6 is pressed against the back ends 20, 21 of the triggers, thereby locking notonly the hammer levers, but also the triggers themselves. The hammers and triggers are kept/locked in this position until the operator is ready to fire, when he moves the slide 12 with his thumb to the position shown in Fig. 1. In this position the lower part of the lever6 is swung upwards about its pivot 7, so as to release the hammer levers and triggers.

As will be seen the gun is automatically locked on the opening of the gun and can only be released by actuating the locking mechanism by hand through the slide 12.

As will be understood from the drawing, the gun may also be locked by drawing back the slide 12 by hand after one shot has been fired. In this case the hammer lever corresponding to the barrel fired (for instance the hammer lever 15) will be swung up so as to prevent the bell crank lever 6 from swinging completely forwards, but nevertheless it may by aid of the thumb slide 12 be swung forwards sufficiently to enable its lower end 20 to be carried opposite to the elongated back ends 20, 21 of the triggers, thereby locking the trigger of the barrel, that is not yet fired. As will be seen the gun will always be looked after loading and remain sountil the slide 12 is moved forwards by hand.

It will be clear that details may be altered without departing from the principle of the invention, which resides therein that top lever by its opening movements actuates a slide, which again actuates a locking lever of such construction, that it can only be brought out of its locking position by hand. I claim.

In a locking mechanism for double barrellecl haminerless shot guns and rifles, the

. combinationrwith a locking bell crank lever, triggers and hammer levers a sliding member actuating the locking lever, a top lever, and a cam on the toplever adapted to actuate the sliding member, triggers; means on'the bell crank locking lever for simultaneously engaging and locking the hammer levers. and the triggers, said locking lever being 0 adapted to look after the firing of one barrel, the trigger of the other barrel by hand.

In testimony that I claim the foregoing'g as my invention l have signedmy name.

' JOHAN LARSENL 

